Machine for the manufacture of wire nails and the like.



W. 0. J. SOHLIE. MAUHINE FOR THE MANUFACTURE OF WIRE NAILS AND THE LIKE.

APPLICATION FILED APB.6,1908.

988,596. I Patented Apr. 4, 1911.

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W. C. J. SCHLIE. MACHINE FOR THE MANUFACTURE OF WIRE NAILS AND THE LIKE. APPLICATION TILED APB..6,19081 988,596. Patented Apr. 4, 1911.

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w. c. J. SGHLIE.

MACHINE FOR THE MANUFACTURE OF WIRE NAILS AND THE LIKE. APPLIOATION rn-nn APB.6,1908.

Patented Apr. 4, 1911.

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UNITED STATES PATENT OFFICE.

WILLIAM CHRISTIAN JOHAN SCI-ILIE, OF GLASGOW, SCOTLAND.

MACHINE FOR THE MANUFACTURE OF WIRE NAILS AND THE LIKE.

Specification of Letters Patent.

Patented Apr. 4, 1911.

Application filed April 6, 1908. Serial No. 425,480.

To all whom it may concern:

Be it known that I, VILLIAM CHRISTIAN JOHAN SoHLIE, of 137 Sinclair Drive, Langside, Glasgow, Scotland, in the county of Lanark, engineer, have invented certain new and useful Improvements in Machines for the Manufacture of WVire Nails and the Like, of which the following is a specification.

This invention relates to improvements in nail machines which belong to that class which produce nails automatically from one, or a plurality of continuous wires and the primary object of this invention is the production of a simple type of machine in which the nails are made in two independent operations, namely, the one operation forms an indentation at two opposite points only on the wire which is to form the nail, and the second completes the indentation already partially formed and cuts the wire to complete the nail, thereby giving more time to each operation with increased speed. Said arrangement causes the machine to produce two, four, six, or more nails simultaneously and this added to the increased speed augments materially the capacity of the machine.

In order that my invention may be properly understood and readily carried into efiect, I have hereunto appended five sheets of drawings, of which Figure 1 is a plan of the machine embodying my invention. Fig. 2 is a view in side elevation of the same showing the dies 0 and p in section. Fig. 3, is a fragmentary sectional View showing in particular the cam L together with the arrangement of the slides K and F with thin dies 1 and H relative to the cam L and the nail blank carrying wheel Z. Fig. 4 is a view showing arrangement of dies for pointing and heading nails.

Referring to the drawings which illustrate the machine for making wire nails with its several parts and arrangements designed to make four nails simultaneously; the wires a are supplied to the machine from two reels through a common straightener b. The feeding apparatus consists of a bell crank 0 which moves upon a shaft, which is fastened to a slide cl, which again moves in a guideway 6, Figs. 1 and 2. The one end of the bell crank 0 is supplied with two knives or grippers f, the object of which is to form shallow indentations whereby the wires a are gripped and moved along, also delivering the length of the nails which are subsequently cut as hereinafter referred to. The other end of the bell crank is in connection with an adjustable crank-plate or disk g by the intermediary of a connecting rod h. The motion imparted by the connecting rod h to the bell crank 0 in the forward movement moves the wires to, and the knives or grippers f being pressed down on the top of the wires a, as already described, causes the wires a to follow with the slide (l. The connecting rod h in its backward movement causes the knives or grippers f to lift from the wires a, and the slide (Z moves back in the said operation, the motionof the bell crank 0 is limited by means of a check bolt 2' fixed on the slide (Z. The wires a move in between two knives j and j acting in opposite direction after the manner of a plate shear. The under knife is stationary, and the top knife 7' moves down against it by means of a lever 7' and cam 7' by which means the wires a are cut and the blanks 7c are placed in the circumference of a feeding wheel Z, Z

The length of the cut-wire blanks 7: is twice the length of the nails subsequently to be produced, plus twice the length of the metal necessary for forming the head. After the wire blanks 7c are placed in the feeding wheel Z, Z, a lever m, by means of cam n, presses a die 0 on top of the blanks 7.: down against a stationary die p, and thereby forming an indentation in the center of the blanks in without quite cut-ting them, as already described in the preliminary description of the specification. The dies 0 and p in their relative positions have a shape corresponding to two nail points with the points against each other.

The feeding wheel Z, Z is supplied with a number of notches or indentations preferably of V shape formed in the circumference to hold the blanks 7c, seen more particularly in Fig. 3. The feeding wheel consists of two narrow wheels Z and P, which are mounted on a shaft 9 with a space between them, the space being sufficient to admit the pointing dies. The shaft q is connected to shaft r, Fig. 2 by means of spur gears. On the end of said shaft is mounted a plate .9 with a number of rollers with parallel axes all arranged in a circle with the shaft 1' as a center. In front of the top roller on the plate 8. is placed a cam t mounted on the main shaft a. Said cam 25 has a groove 1n the circumference to accommodate the rollers, and is so formed that when one roller goes out from the groove another goes in, thereby causing the feeding wheel Z Z through the spur gears, to move one division for each revolution.

The width of the outward cheeks of the feeding wheel Z, Z is less than the length of the wire blanks 70 so much so that it admits on each side of the wheel a v pair of dies o and '0 and w and 10 which grip the blanks 7c and fastenthem while the point and the nail heads are being made. The dies 2: and oare fitted to two levers a: 00 Figs. 1 and 3, which levers move aboutthe same center, and get their movement from a cam m The levers m, m are arranged so that lever a: works above the shaft 1& on the left hand side of cam w and lever 10 works below shaft a but on the right hand side of cam 2 presses against the end of the blanks 7;

to form the heads. In a similar manner, dies w, to act upon the other end of the blanks 70 while a cam a and lever 2 give motion to die 2 to form the heads on said otherend of the-blanks 'lc (see'Figs. 1 and 4). The'first indentation of the wires a is effected where said wires .are cut while the heads are made at'that point at which the points are finished.

The finishing, pointing, and separating apparatus are arranged as follows A slide I which receives its movement from a cam L carries a pointing die Opposite the die II are placed two corresponding dies I, I on a slide K which also receives its movement from cam L. The said dies II and I, I adapt themselves in their movement-to the indentations already made, and at theend view has the same shape and angle as the nailpoint,-see Fig. 4.

Inthe slide K is placed a knifeior die M which ='fits tothe dies 11, I :in. the 15311181111311- ner as apunching apparatus, and receives its movementifrom a lever N and cam Ov on the shaft a When the dies H and I, I are pressed .against the indentation already made in the blanks is, the'die M is moved forward and thereby cuts all the superfluous material away, and separates the nails from each other and leaves thepoints finished.

After the nails are finished, the dies o, '0 w, w II and I, I now open, and whenthe feeding wheel Z, Z moves again the nails'fall out from the feeding wheel and through a hole in the bed of the machine into a box, not shown. In the edge of the feeding wheel Z, Z is cut a groove, in which is placed guides P, P -to prevent the blanks 70 from falling out during the travel from cutting position to the finishing position, as seeniin Figs. 3 and 4.

Claims.

1. In a nail-making machine, the com bination of forming dies adapted to indent a double length nailblank intermediate its ends, and head-forming dies with means {for feeding a doublelength nail blank into position to-be operated onby said formingdies adapted to indent the nail blank, and intermittently-operated means adapted to convey the double lengthiblank from theindenting dies into position to be operated on by-the head forming dies.

2. In a nail-making machine, the combination of receiving and conveying means for a double ended nail blank, with two separate sets of fo'rmingdies, one of .said sets of dies adapted to .indent. a -.nail .blank intermediate its ends, and -the other :set adapted to complete the separation of the nail blank, the receiving and conveying means adapted to transferztheinail blanks from one set of dies to the other.

3.111 a nail-making machine, the combination with indenting dies, adapted to indent a double length nail blank inter mediate its ends, of point .forming .dies, adapted to separate the nail blank intermediate its ends, means for feeding a double length nail blank into position to be operated on by said indenting dies, and ;intermittently operated means adapted'to convey the double length a blank from the indenting dies into position to be operatedon by-jthe pointing dies.

In testimony whereof II aitixmy signature in presence oftwo witnesses.

WILLIAM CHRISTIAN JOHAN .SCHLIE.

alVitnesses JOHN TRAIN LI-DDLE, JOHN :LIDDLE.

.rcopiesof this.patentmaydoe obtained,for five .oents each, by addressingthe .Comanissionenof .Batents,

-Washington, D. C. 

